SSRI: Antidepressants and bone density
In met: Evaluating and Improving Matched Samples in Observational Studies

NHANES 2009-2010 data on selective serotonin reuptake inhibitors (SSRIs) and bone density for adults.

1	data("SSRI")

A data frame with 2759 observations on the following 11 variables.

z: Antidepressants status, 1 = SSRI user, 0 = taking neither SSRI nor TCA
female: 1 = female, 0 = male
age: Age in years, >=18
black: 1=black race, 0=other
hispanic: 1=Hispanic race, 0=other
povertyNA: 1=missing poverty ratio, 0=observed poverty ratio
povertyFill: Ratio of family income to the poverty level, capped at 5 times poverty, with missing values imputed as mean
education: Level of education in 5-point scale, with 1 for less than 9th grade, 3 for high school or equivalent, and 5 for college graduate
height: Height in cm
weight: Weight in kg
bmi: BMI or body-mass-index
cotinine: serum cotinine level (ng/mL)
hd: serum 25-hydroxyvitamin D2 + D3 level (nmol/L)
diabetes: 1=diagnosed with diabetes or borderline diabetes, 0=no diabetes
insurance: whether covered by insurance
weighmore: whether would like to weigh more
weighless: whether would like to weigh less
weightchange: weight change in the recent 1 year of finishing the questionnaire (kg)
physicalact: whether has moderate and vigorous activity in the past 30 days
dietsup: whether has taken any dietary supplements in the past month
pr: Height
femurbmd: Femur bone mineral density
femurbmc: Femur bone mineral content
fneckbmd: Femoral neck bone mineral density
fneckbmc: Femoral neck bone mineral content